Cairns diving tours. Get ready to see the best of the Great Barrier Reef from Cairns. Abundant coral gardens, bommies, lagoons and coral walls are all waiting for your discovery on a Cairns diving tour. What will you see? A diverse array of marine life; guaranteed sightings include coral trout, snapper, fusiliers, chromis, sweetlips, triggerfish, damsels, feather stars and giant clams. We’ve done over 480 dives on Cairns Great Barrier Reef, and we’ve seen these reef critters every single time. Beyond that, there’s a high chance of seeing turtles, reef sharks, stingrays, anemonefish and more. Cairns diving tours depart every day and visit a range of locations, including the outer reef, inner reef, pontoons and tropical islands. There’s a Cairns dive tour to suit people of all experience and certification levels, including those wanting to try scuba diving for the very first time. Each boat and destination offers a slightly different experience and with over 15 Cairns diving tours running every day, it can be hard to decide which is the ‘best boat’ for you. We’re here to help with unbiased advice and information.
The Best Cairns Diving Tours. Most Cairns dive tours insist on guided dives, which is perfect for inexperienced divers. These tours visit a range of inner and outer reef sites, as well as pontoons. For those seeking the freedom to explore the reef unguided, there’s the choice of 4 tours, all of which visit the outer reef. Another difference between the Cairns diving tours is the number of dives available on each boat and the time spent at the reef. We break this down for you below.
Our Expert Advice: We’ve been on 99 Cairns’ Great Barrier Reef tours over the past 15 years. We started as snorkellers, tried an introductory dive, took a dive course, became certified and have been diving ever since. We’ve been on and reviewed every Cairns dive boat, so our advice comes from first-hand experience, not brochures. We don’t work for the boat companies; we work for you. We want to ensure you get the most epic experience to suit your specific needs. Hit us up for some honest advice by calling Richard on 0410 510 214 or richard@ilovecairns.com.au If you like what we do, please book through us; the price is exactly the same and the commission supports us to continue to supply unbiased reviews and advice. Thanks to you, Richard, Julie and Ethan Johnston.

Get a free underwater camera rental when you book tours through us valued at over $750, we’ll lend you a GoPro underwater camera to use for the duration of your tours. Numbers are limited and allocated on a first-come basis. Get in touch with us to claim this deal today.
We’ve hand-picked these 8 as being best in class for Cairns diving tours, based on the quality of their reef sites, dive crew service and value for money. We’ve included a selection of guided and unguided dive tours here, so there’s something for everyone, as well as a pontoon tour which is great for divers travelling with non-diving family / friends. This list is based on our 15 years of experience on these boats. For personalised advice contact Richard on 0410 510 214 or richard@ilovecairns.com.au or book online through this site.
Silverswift is a Cairns reef tour for snorkelers and divers. Up to 5 hours at the reef. Visits 3 different sites. All scuba diving is guided.
Silversonic is a Port Douglas reef tour for snorkelers and divers. Visits 3 sites daily with up to 5 hours at the reef. All diving is guided.
Passions of Paradise is a Cairns reef tour on a sailing catamaran. Visits 2 sites, up to 5 hours reef time. For snorkelers and divers.
The AquaQuest Cairns reef tour is suitable for snorkelers and divers. Visits 2 reef sites, up to 5 hours at the reef. Guided or unguided diving.
Cairns reef & pontoon tour. Up to 4 hours at reef. Includes snorkeling, glass bottom boat, semi sub, waterslide & more. Optional diving.
Cairns reef tour. Up to 6 hours at the reef. Visits 2 sites. For snorkelers and divers. All diving is guided. Excellent food.
Cairns reef tour. Up to 5.5 hours time at 2 reef sites. For snorkelers and divers. 1 dive included in the price. Optional extra dives.
Cairns reef tour with cultural storytelling & traditional demonstrations. Dive & snorkel. Up to 5 hours at 2 reef sites. All diving guided.
Choosing the right Cairns diving tour for you, comes down to matching your dive experience, expectations and budget, with the right tour and boat. There’s no bad tours, but the wrong choice can lead to a dive day that doesn’t tick all your boxes. We’ve come up with the below factors for consideration, as well as our personal recommendations. Every day the Cairns dive boats depart the marina, headed to outer reefs, inner reefs and pontoons. They have all the scuba diving equipment you need for a great day, and that is included in the dive tour price. Certified divers will need to bring their certification cards and all divers will need to complete dive medical paperwork on board the boats. For those wanting to try scuba diving for the first time, introductory dives are available with no prior experience necessary.
The majority of Cairns reef tours provide certified diving but none of the day boats are ‘dedicated’ dive boats, which means you will be travelling with snorkelers as well. For this reason, most boats offer introductory scuba diving too, for those wanting to try diving for the first time. Certified divers will need to bring proof of certification, which will be checked by the dive crew, and complete dive medical paperwork. Dive briefings will be provided on the way to the reef, including refreshers on the equipment and underwater communication signals. Most dive sites do not exceed 20m making them suitable for all divers. If you have a Junior Open Water Diver in your group, this needs to be communicated at the time of booking.
9 of the 15 Cairns diving day tours insist on guided diving. There are many benefits to this, it allows you to focus on the reef rather than navigation, and ensures you don’t miss site specific highlights, such as swim-throughs and anemones. The dive guide is included in the dive price. Group size rarely exceeds 5 to 1.
Our Recommendation - Silverswift – Quicksilver - Silverswift is the best laid-out boat for certified divers, with internal table allocation and a well-managed dive deck. It provides up to 5 hours at the reef and visits 3 different outer reef sites, with the option to dive at all 3.
Only 4 Cairns diving tours allow guests to participate in unguided dives. There is no solo diving. Any solo travellers will be paired with another diver on board, for ‘buddy diving’. Unguided diving is a great choice for experienced divers who want to take their time to explore the reef, also the top choice for photographers.

Our Recommendation - Aqua Quest - Divers Den - We’ve been on AquaQuest 7 times, for us it’s the best Cairns diving tour for unguided dives. Their outer reef sites are fantastic, with abundant corals and marine life. AquaQuest gives you up to 5 hours at the reef and visits 2 reef sites, with the chance to do 3 dives.
A 1 dive day with some snorkelling is suited to certified divers who are travelling with non-diving companions and/or parents taking turns diving and child minding. It’s also a great option for the budget conscious, because it’s the cheapest form of Cairns diving tours. The pace of a 1 dive day is relatively unhurried.

Our Recommendation - Reef Experience - This Cairns diving tour gives you up to 5.5 hours at the reef and visits 2 outer reef sites. This is also the only tour to include 1 dive in the tour price, making it amazing value. Lots of other great inclusions and bonus, this is owned by a local family.
A 2 dive day with other activities allows you to experience the reef from all aspects, whilst maintaining an unhurried pace. 3 dive days give you the most dives but leaves little time for snorkelling and relaxing. Pick a boat that offers a diversity in activities and locations for this one.
Our Recommendation - Ocean Freedom - This isn’t the cheapest, but it delivers the best 2 dive day. Ocean Freedom provides up to 6 hours at the reef and visits 2 inner reef sites. Both dives are at Upolu Reef which is home to lots of anemonefish and beautiful corals. The dives are completed before lunch, with the rest of the day to snorkel and relax.
The maximum number of dives you can complete in a Cairns diving day tour is 3, and only 5 boats offer this opportunity. These days are for experienced divers who want to maximise their dive time on Cairns Great Barrier Reef. If you are chasing guided diving, then we recommend Silverswift, but for unguided see below.

Our Recommendation - Aqua Quest - Divers Den - AquaQuest again. As underwater photographers and a family of divers who had to accommodate the limited dive depth of a Junior Open Water Diver, we choose this boat every time. Dive sites are amazing – we’ve seen turtles every time. Dive crew are awesome.
Scuba diving in Australia can be very expensive. This is mainly due to the regulations, strict safety standards and operator contributions to the Great Barrier Reef Marine Park Authority. So if you’re looking for Cairns cheapest diving tour, we get it! Best of all cheap doesn’t compromise on experience.

Our Recommendation - Reef Experience - This locally family owned and operated company is the only Cairns diving tour to include a dive in its tour price, making it the cheapest option around. Bonus it visits 2 amazing outer reef sites and gives you 5.5 hours on the reef. It also includes a hot bacon and egg roll for breakfast and complimentary glass of wine with cheese and crackers on the way home.
If you’re an underwater photographer looking for the best Cairns diving tour for you, we recommend an unguided tour. We always take a camera and GoPro with us when we go diving and have taken all the photos on this website; guided dives make it very difficult to ‘get the shot’. Dive guides are always swimming away, and dive groups can crowd the shot.

Our Recommendation - Aqua Quest - Divers Den - AquaQuest is the best boat for unguided diving and underwater photography. Their outer reef dive sites have an abundance of marine life and the underwater visibility and clarity is usually excellent, making it perfect for underwater photographers.
This is a big one. If you’re seeing the reef with your non-diving friends and/or family, then consideration must be made as to the experience they will have. Once we had our son, we realised the importance of tailoring our reef trips to his needs. Initially this meant picking tours that provide other activities.

Our Recommendation - Sunlover Reef Cruises - This outer reef pontoon tour ticks a lot of boxes for divers and non-divers. It gives you 4 hours at the reef and the chance for 1 dive (extra cost). Included in the tour price is glass bottom boat tours, a semi-submersible and underwater observatory. It even has a waterslide.
We get asked this a lot. Is the diving better from Cairns or Port Douglas? I can tell you it all depends on the day, the weather, the boat and its destination. Please note the travel time between Cairns and Port Douglas is around 1 hour each way. So, our advice is if you’re staying in Port Douglas, pick a Port Douglas tour. If you are staying in Cairns, pick a Cairns tour; that way your day is about the reef, not the commute. If you want more specific information and advice surrounding the best Cairns diving tour for you, contact Richard on 0410 510 214 or richard@ilovecairns.com.au
This section relates to ‘what you get’ in conjunction with your tour price. The ‘base price’ for all Cairns reef tours covers the boat ride to and from your chosen reef destination, lunch, snorkelling equipment (mask, snorkel and fins) and buoyancy devices. When you choose to add scuba diving to the tour, the extra dive price covers the equipment (BCD, tank, refills, weight belt mask, snorkel and fins) and the dive guide, if you’ve chosen guided diving. Beyond that some Cairns reef tours include other activities in the tour price, such as glass bottom boats and guided snorkel tours. Make sure you look at all of these things, when selecting the best Cairns diving tour for you and if you’re still unsure, contact us.
We’ve touched on this above and as I’m sure you’ve realised, Cairns diving tours are expensive, especially if you are comparing them to say Bali or Indonesia. There’s many reasons for this, and safety and compliance is a big one. Ours is one of the most regulated dive industries in the world, but you can be assured the diving is safe, the equipment is well maintained and the sites are pristine. Cairns diving tour prices can be confusing too, because there’s a sliding scale of what each dive costs, based on number of dives booked. To assist with understanding all of this and making budget conscious and informed decisions we’ve researched and prepared Cairns Cheapest Dive Tours blog post, showing all the prices and dives in easy comparison tables. We’ve also prepared a Cairns Reef Tours comparison table. Of course you’re welcome to reach out to Richard too, we’d love to help you with your Cairns diving tour.
The Great Barrier Reef is one of the wonders of the world and seeing it for yourself is just amazing. Scuba diving opens this world right up, providing you with the opportunity to explore its coral gardens and lagoons at your leisure. Certified divers can choose a day diving tour (which we write about on this page) or a liveaboard tour (which we will add to the site in due course). For Cairns diving day tours, most locations have a maximum depth of 22m, with most diving done at 18m and above, which is perfect for Open Water divers. You do not need to be an Advanced diver to enjoy the Cairns diving tours.
I was so excited when I became a certified PADI Junior Open Water Diver, at 10 years of age. Scuba diving on the Great Barrier Reef is amazing! I love diving unguided in a 3-person buddy group with my parents. This lets us tailor the dive to the things we like to see and do, rather than following a guide around the reef. The things I love to see most of all are sharks, turtles and anemonefish, but stingrays are pretty cool too. I definitely feel the cold more than my parents and usually wear a 3mm wetsuit which keeps me warm. If your kids are young divers, let my parents know so we can arrange a small tank, which will be easier for them to carry on the dive deck.
Cairns diving tours visit a range of Great Barrier Reef locations, including inner reefs, outer reefs and reef pontoons. With the exception of the pontoon tours, most boats allow you to explore at least 2 reef sites during a diving day tour. Liveaboard boats provide the opportunity to explore multiple sites across many days, maximising your time and experience with Cairns Great Barrier Reef. All of the Cairns diving locations offer different experiences, which we dive into below.
The inner reefs are the reefs that are closest to the Cairns mainland. The underwater visibility and clarity at these locations can be heavily impacted by the weather and prevailing tides. As such, conditions can vary widely from day to day. That being said, there’s less travelling time to reach the inner reefs and these reefs do offer healthy coral gardens and walls, with an abundance of marine life. In fact, you are most likely to see more anemonefish, reef sharks and rays on the inner reefs than the outer reefs. The inner reefs are mostly protected from offshore currents and waves, offering comfortable snorkelling and diving conditions. These can be a good option for those suffering from seasickness, for more information please see our Cairns Best Reef Trips To Avoid Seasickness article.
The outer reefs are so named because they are the closest reefs to the edge of Australia’s Continental shelf, and the furthest reefs from the Cairns mainland. Due to their distance from land and islands, the underwater visibility and clarity out here is usually amazing. Of course, like the inner reefs, outer reef sites can also be impacted by weather and prevailing tides. Outer reefs are also more likely to have waves and currents, depending on the day and weather conditions. The outer reefs have amazing coral gardens and this is where you are most likely to see sea turtles and pelagic fish, such as Giant Trevally, Tuna, Maori Wrasse, Queenfish and more.
Reef pontoons are an awesome option for scuba divers travelling with non-diving companions. This is because the pontoons offer the largest range of reef activities and experiences. From snorkelling and guided snorkelling tours to glass bottom boat and semi-submersible tours, underwater observatories and fish feeding. Optional extras on pontoon trips are introductory and certified diving. That aside, the pontoons still deliver great diving for certified divers with easy, under-pontoon water entry, swim throughs and coral walls. All diving from the pontoons is guided. All the Cairns reef pontoons have professional underwater photographers to capture all the action of your day. Pictures are available for review and purchase at the end of the day (at extra cost to the tour). These make awesome souvenirs.
Let’s go. If you have the budget and the itinerary time, then liveaboard boats offer scuba divers the chance to explore multiple reefs and reef sites, over many days. Best of all, on a Cairns liveaboard reef tour you can do night dives and early morning dives, and enjoy sunrise and sunset and sea. Epic, bucket list experiences. There are 3 liveaboard boats on Cairns’ outer reefs. Pro Dive and OceanQuest do not provide child prices, so if you are a diving family, that’s a consideration. Pro Dive is mostly a divers’ boat, offering courses and trips. While OceanQuest does accommodate snorkellers and divers. Reef Encounter is the best for family reef trips, offering snorkelling and diving, with child rates and the option to have a port-a-cot or rollaway bed in your cabin.
The map provided outlines numerous dive sites on the Great Barrier Reef. While diligent attempts have been made to accurately place the markers, the precise locations and name of each dive site cannot be guaranteed.
Yes! Diving in Cairns is definitely worth it – apart from the awesome underwater visibility, Cairns is the closest city to the reef, which means less time travelling and more time diving. There’s a range of dive boats visiting an array of destinations, which enables you to pick the best tour to suit your diving abilities and the needs of any other travelers visiting the reef with you. NB: If you are wondering, ‘what’s better for diving, Cairns or the Whitsundays?’ – we’ve dived in both locations and can assure you the visibility and coral cover you will see from Cairns, is better than the Whitsundays.
There is no right or wrong answer here – as it all depends on your own experience levels and that of anyone else you are travelling with. If you are an experienced, certified scuba diver, the best place to dive in Cairns is on the outer reef. If you are travelling with non-diving companions who are confident swimming in the open ocean, then it’s still the outer reef. If you are travelling with people who are not confident in the open ocean, then a pontoon tour might be for you or an island tour.
Scuba diving directly from the beaches in Cairns isn’t possible, as the nearest reef is approximately 20 kilometres offshore. To explore the reef, you’ll have to book a diving tour. These tours typically depart from Cairns or Port Douglas, and they will transport you by boat to a suitable reef location for scuba diving,
The closest place to dive from Cairns is Green Island, which is about 24km offshore. The next closest place to dive from Cairns are the pontoons at Moore Reef, which are around 47km offshore from Cairns. Finally the outer reefs, which are around 55km from Cairns.
There are around 20 dive operators working from Cairns. Some provide learn to dive courses, some operate diving day tours and others provide liveaboard diving tours. All are experienced reef tourism operators.
The diving off Cairns is usually a maximum of 25m, but most dives off Cairns go no deeper than 18m.
Yes – Cairns diving tours are suitable for Open Water divers. Most of the diving day tours and liveaboard tours on Cairns’ outer reefs do not go any deeper than 18m.
The answer is ‘Yes’ – our son is a Junior Open Water diver and he has completed 61 scuba dives on the boats from Cairns to the Great Barrier Reef since becoming certified when he was 10 years old. BUT we definitely recommend touching base with your dive operator of choice prior to booking, to ensure they can accommodate Junior Open Water Divers. As most dive boats insist on guided dives and as Junior Open Water divers can only go to a maximum of 12m it can sometimes cause some ‘complications’ on the dive deck.
Again, there is no ‘best boat’ as such. There are several award winning boats and tour operators, there are family owned tours which pride themselves on customer service, there are boats that go to islands, pontoons and the outer reef. The question to ask is ‘what boat is best for me?’ and if you haven’t found that answer here, reach out to Richard for personalised advice on 0410 510 214 or richard@ilovecairns.com.au
The newest dive boat in Cairns is Evolution, which is run by Down Under Cruise and Dive. Evolution is a custom designed and built catamaran, that commenced Cairns reef tours in December 2015. As you can imagine, COVID and its associated border closures and restrictions impacted Cairns and the dive market heavily. The majority of reef boats are very well maintained and go through annual refits to ensure reliability and passenger comfort.
There is no right or wrong answer here, as it all depends on what you like looking at when you dive. For us personally, our favourite Cairns dive site is the 3 Sisters on Milln Reef, which is 3 large pinnacles offering swim throughs and an abundance of marine life. If you have more time and a bigger budget, then head north on a Cairns liveaboard diving trip, as some of our favourive dive sites are on the Ribbon Reefs, including the Cod Hole and Steve’s Bommie.
Every month is a good month to go diving in Cairns. The boats leave every day.
Diving on the outer reefs and pontoon from Cairns, you are guaranteed to see a few things, which includes a kaleidoscope of corals, schools of fusiliers, anemonefish of one form or another, snapper and sweetlips, feather stars, chromis and giant clams. We see these on every single Cairns diving trip, and we’ve done more than 480 dives here. Obviously you will see more than this, but the specifics of which depends on the day and the location and nature. There are more than 1,500 fish species that live on the reef, as well as several types of reef sharks, 6 of the world’s 7 marine turtle species, stingrays and more.
Yes – you can scuba dive in Cairns without a diving certificate. To do this, you must book an introductory dive. There are certain age and health restrictions surrounding this (you must be at least 12 years old, with no asthma, heart disease or diabetes – and more) and you will be guided by an experienced Dive Instructor.
If you are confident scuba diver, then it is better to go diving on one of Cairns outer reefs or reef pontoons, over an island. Why? The visibility is usually much better, as is the coral cover and diversity of marine life.
Controversial question – some reef operators will say ‘yes’ to this, as when you are doing an introductory dive, you are being held by the hand (literally) during the dive. However, realistically if you can’t swim, then staying submerged under the water during a scuba dive might be incredibly stressful. You must be a capable swimmer to participate in a learn to dive course and become a certified diver. This needs to be demonstrated during the course, by swimming a certain distance and also treading water for a certain amount of time. If you fail these skill tests, you will not become a certified scuba diver.
There is no right or wrong answer here. The best Cairns diving tour is the one that has the best destination and inclusions to deliver you the best experience, based on your individual skills, capabilities and interests. We’ve written our Cairns diving page to provide people with helpful information and advice, based on our years of experience, to help you decide what the best Cairns diving tour is, for you.
Yes – obviously you can still scuba dive in Cairns if it’s raining – you are going to get wet anyway. Assuming it is usual rain, the boats will still operate and you will still have an amazing day scuba diving on the Great Barrier Reef. In the event of a severe weather occasion – such as a tropical cyclone – then the boats will not go to the reef. This is for your safety. Cyclones can occur at any time between December and March, but are relatively rare usually happening once a year or once every couple of years. Also, just because it is raining in Cairns, does not mean it is raining at the reef. Sometimes it is, sometimes it isn’t but irrespective you should still do it.
Honestly, there is no right or wrong answer here. What we will say, is that there are more diving boat tours in Cairns, than there is in Port Douglas, visiting a greater array of reef destinations. That being said, you should dive from wherever you are staying. If you are in Port Douglas, go diving in Port Douglas. If you are in Cairns, go diving with a Cairns operator. Both towns have fantastic Great Barrier Reef sites and it’s much better to spend your time travelling to the reef – rather than between towns and then the reef.
The worst Cairns diving tour is the one you take, that doesn’t match your skills, experience and expectations. Do your research, be honest on your own comfort levels, skills and abilities – and that of your family / friends, if you are travelling with them – and book a Cairns diving tour that ticks the right boxes, in regard to destination and inclusions, for you. Our advice and local knowledge is here to help.
No – scuba diving in Cairns is no more or less dangerous than scuba diving anywhere else. In fact, Cairns and Queensland, Australia have some of the most stringent and legislated scuba diving safety standards in the world. At all times, you should dive to your limits, your certification levels and your medical and physical capabilities.
Cairns is the best place to go diving on the Great Barrier Reef. We have more boats, more experience and are closer to it. Our tourism operators pride themselves on customer service, safety and sustainability. Our reef sites have excellent coral cover and biodiversity. It’s all here, waiting for you.
Cairns is best city to visit to see the Great Barrier Reef. We say this having visited the reef from Cairns, Mission Beach, Townsville, Airlie Beach and the Whitsundays. Our reef sites are close to the coast and the Continental Shelf. The coral cover is excellent and marine life is abundant. You can do day trips, island trips and liveaboard trips. Experienced, award winning tourism operators, delivering reef experiences which will stay with you for a lifetime. If you want wonderful Great Barrier Reef diving tours, book your plane, train or bus tickets to Cairns – we’ll see you on the reef.
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